Machine for making window or plate glass.



PATENTED MAR. 5, 1907.

w. w. w. KBYES, MACHINE FOR MAKI I: 1% ESE 15: 1 i Q/ WW-E 1 No.846,316. PATENTED MAR. 5, 1907 W. W. W. KEYES. MACHINE FOR MAKING WINDOWOR PLATE GLASS.

APPLICATION FILED AUG. 24, 1903. RENEWED JUNE 21,1906.

7 smms smm 2.

' ED146316. PATENTEDMAR. 5, 1907.

' W.W. W. KEY-BS.

MACHINE FOR MAKING WINDOW 0R PLATE GLASS. APPLIGATION FILED AUG. 24,1903. RENEWED JUNE 21, 1906.

7 4 7 SHEETSr-SHEET 3- Ium|[mummnnmwumaummmmmlg IMMIHLMIIHIIILI 4 51 W.W. W. KEY'ES.

MACHINE FOR MAKINGWINDOW 0R PLATE GLASS.

APPLICATION FILED AUG. 24, 1903. RENEWED JUNE 21, 1906.

PATENTED MAR. 5,1907.

7 SHEETS-SHEET 4'.

No. 846,316. PATENTED MAR. 5, 1907.

W. W W. KEYES. MACHINE FOR MAKING WINDOW 0R PLATE GLASS.

APPLICATION FILED AUG. 24, 1903. RENEWED JUNE 21,1906.

' 7 SHEETS-SHEET 5.

PATENTED MAR. 5, "1907.

W. W. KEY-Es.

MACHINE FOR MAKING WINDOW OR PLATE GLASS.

APPLICATION FILED AUG. 24, 1903. RENEWED JUNE 21 7 SHEETSSH BET 6.

glawzwtoz No 846,316. A I EATENTED MAR. 5, 1907. r W, ELKBYES. I

MACHINE FOR MAKING WINDOW 0R PLATE GLASS.

APPLIUATION FILED 1116.24, 1903. RENEWED JUNE 21, 1906.

1 sums-sum 1.

UNITE STATEQ PATENT FFIGE.

WILLIAM W. W. KEYES, OF ALEXANDRIA, INDIANA, ASSIGNOR ONE- FOURTH TOGILFORD B. ROBERTS AND ONE-FOURTH TO JOHN F. MERKER, OF ALEXANDRIA,INDIANA.

MACHINE FOR MAKING WlNDOW ORPLATE GLASS.

Specification of Letters Patent.

Patented March 5, 1907.

Application fi ed August 24, 1903. Renewed June 21, 1906. Serial No.322,700

oi Alex'rndria, county of Madison, and State ofIndiana, have invented acertain new and I useful'Machine for Making VVindow or Plate Glass; andI do hereby declare that the follow ngis a full, clear, and exactdescription thereof, reference being had to the accom= panying drawings,in which like letters refer to like parts. r

v The object of this invention is to form window, plate, or other sheetglass by drawing the sheet from the body of molten glass, asdistinguished from the blowing process, whether the latter be byindividuals or by the recently invented blowing-machines.

In the machine herein set forth there is no blowing of the glass, butthe glass is drawn vertically from the suri'aceoi the body of moltenglass.

In carrying out this invention a metal drawing-ring or equivalent meansis caused to descend, after being heated, into contact with the surfaceof the glass. The glass adheres to the drawing-ring, and asthe latter isslowly elevated it draws up with it a cylinder of glass, which after ithas become hardened su'l'liciently is cut into sections of the desiredlength and placed on trucks and sent to the annealing-oven.

To obtain a quality oi molten glass cosscssing the-right temperature for,clraWiI Q-a supplemental tank is added to the side of the mainglass-tank and in communication therewith. In the s'upplemei'ital tankthere is no heating means; but, on the contrary, there is 'rreferablymeans for shutting out the heat from the main tank and also means torcooling or controlling the temperature of the glass in the supplementaltank in order that its temperature may be reduced. The drawing-ringabove referred to rein-ably heated to almost the same temperature as theglass at the surface of the supplemental tank; 7

While the drawing-ring W]ll elevate and form the cylinder of glasswithout other means, the g1 ass will he very thin. To thicken the clinder of glass while being: drawn and give it the desired strength,means for chilling the surface of the body of glass in the supplementaltank at and near the po nt from. which. the. cylinder otglass, is beingdrawn is provided. Herein said means con of coils of pipe within andwithout the lower end of the cylinder of glass as it is being drawn, andthrough said pipes cold water is introduced. Means is provided forregulating the temperature of said coils near the surface of the body ofglass. The chilling of the surface of the body of glass at this pointcauses more of it to be drawn upw'ard into' the cylinder of glass andgives to it thickness and strength that ,may be modified, if desired. V

The drawingring above described need be used only for starting theformation of the cylinder of glass, for after the cylinder of glass hasbeen elevated some. distance it may hetaltcn hold of by some othermeans, such as a ring clamping around the body of the cylinder of glass,and the drawing-ring first used may be laid aside. Therefore the cyliuder of glass is continuously drawn upward by said clampingrings andthe upper end of the cylinder of glass may be cutaway as it moves upwardand the sections be taken to the anneafing oven. The drawing-ring is notused afgain until after there has been an entire cessation of theoperation just described, which operation may be continued for a longperiod of time. During all of the operation after the cylinder of glasshas been started the cylinder ol glass of its own accord draws up theglass from the body of molten glass in the supplemental tank andcontinuously forms itself. When a new op eration of the glass-makingapparatus -is commenced, the drawin g-ring is used to start the cylinderof V The meansior carrying out the objects and features specifiedconstitute the main body of my inventi on. Means is also provided forcutting oft the cylinder of glass on the inside when desired. Suchcutting means is elevated'and lowered into the cylinder of glass orlifted out of it, as occasion requires. These and the various otherdetails of this invention will appear from the accompanying" drawingsand the following descripticn andclaims.

in the drawings, Figure 1 -is a horizontal section of a portion of themain tank with the supplemental tank added thereto and the track andtower on each side of the sup lemental tank, parts beingbroken away. h1g.

2 is a section on the line 22 of Fig. 1, showing l therefrom, shown onan enlarged'scale, parts 10. Fig. 12 is a central vertical section of aporting and vertically adjusting the same. .Ia-detail, there is addedto'one side of an Ordinary glass-tank 20 a supplemental tank a damper,part being broken away. -Fig. 3 is a vertical central section of aportion of the upper part of the supplemental tank and the means forchilling and drawing the glass being broken away. Fig. 4 is a centralvertical section through the supplemental tank and. the lower half oftheltower about the same and the parts therein mounted. Fig. 5 is thesame section of the upper half of the tower. Fig. 6 is a plan view 01the means for supporting and adjusting the clay ring in the mouth of thesupplemental tank. Fig. 7 is a central vertical section of what-is shownin Fig. 6. Fig. 3 is a plan view of the top of the tower, .onecornerbeing broken away. Fig. 9 is a vertical section on the line 9 9 of Fig.8 and of the drawing=ring supported thereby and a cylinder of glasssupported by the drawing-ring, parts being broken away and the means forcutting off the glass being shown in dotted-lines. Fig. 10 is a planView of a portion of the drawing-ring with one of I the supporting-rodsin cross-section. Fig. 11 shows an elevation of what appears in Fig.

portion ofthe cylinder of glass and the means for holding the same'afterit has been cut off and for cutting the same to separate it from themain body of the glass. Fig. 13 is asection on the line 13 13 of Fig.12. Fig. 14 isa transverse section on the line 14 14 of Fig. 12, butshowing the links for supporting the glass-holder, which extendsabovesaid section-line. 15 is a side elevation of one of thecooling-coils and the means for sup- 21, connected with the main tank bytwo; openings 2.2, passing one on each side of a central wall portion23, as appears in Fig. 1. The result is that the molten glass flows intoand fills the supplemental tank in the same way and to the same level asthe main tank. The purpose of the supplemental tank is to enable theglass to be retained. therein at a lower temperature than in the maintank, so that it can. be worked or drawn. The reduction in temperatureof the glass in the supplemental tank results not only from said tankbeing scparatcd from the main tank, and therefore out of direct contactwith it and l the influence of the lire, but also by the daml pers 24,that are mounted in the wall of the i sup plen cntaltank and the middle.wall-piece 23, so as to extend across the passage-way 22 l and bevertically slidable. This appears in Figs. 1 and2, and said dampers aresupported by cables 25, extending, over sheaves 26, mounted on the frontface of the wall of the main tank and carrying weights 27. The l dampers24 preferably extend down to the surface of the glass 28 in thesupplemental tank and shut the heat from the main tank outof thesupplementary tank. If, however, it is desired toincrease thetemperature in the supplemental tank for any reason, said dampers may beelevated to any desired extent.

Further details of construction of the supplemental tank will appear inFig. 4, where an oval top is shown with a central opening or mouth.There is also a series of fines 30 leading from said tank and closednear their upper ends by dampers 31, whereby they may not only beclosed, but the extent of the opening adjusted. These fines are shown incross-section in Fig. 1 and are to be used for keeping the glass in thesupplemental tank at the proper temperature for working. The bottom ofthe tank is flat with a spreader 32, in the form of a frustum of a cone,extending up level with the fines 30, as shown in F igze. This spreaderis preferably formed of clay and of one piece for the purpose of keepingthe lower end of the glass cylinder spread as it is being drawn and offurnishing a conduit 33, in the center thereof, for the inlet water-pipe34 and the outlet water-pipe 35, which are connected by the coil 37. Aguide 36 is placed in the conduit 33 to hold the pip as 34 and 35inplace, and especially'to hold the coil 37 from shaking and in the properplace. This guide 36 is merely a cylindrical block with holes through itfor the pipes. The block 36 is tightly mounted on the pipes 34 and 35,so that when said block is moved by the rod 40 and lever 41 the spiral37 above can be elevated or lowered somewhat, so as to adjust the lowerend thereof to the desired position for chilling the glass. The lever 41is ful crumed on the bearing-piece 42. The pipe 34. leads from anysuitable water-supply. The spiral 37 is somewhat conical in form, as

' shown, with the lower endin close proximityto the upper end of theclay spreader 32 and of slightly larger diameter, so that it will coolthe atmosphere, and thereby the glass, in its vicinity.

Within the mouth of the supplemental tank there is a clay cylinder 44,vertically movable, so that the lower end thereof will 4 extend downinto the body of the glass. The construction of this cylinder is shownbest' in Fig. 7. There is a top plate 45 with lateral flangesoverlapping the top' of the clay cylinder, and to this there are secureda number of metal straps 46', that extend tothe lower end, of the claycylinder and have bolts 47 extending from said straps. into the body ofthe clay cylinder to preserve its shape and ITO form. The means forsupporting .and ad-v justing this cylinder are shown in l! igs. 6 and 7.It is done by some screw-rods 48,,that ex-i tend up throughguide-brackets 49, secured to the diagonal bars 50, that are fastened tothe I-beams 51, mounted on the I-beams 52, that arersupported at one endon the posts 53 and at the other end on the cross I-beam 54, 4

- other side, the clay cylinder at thehot side is seesl'e that rests ateach end upon the posts 55, that:

are built'against the side of the main tank. Aspiral gear 57 surroundseach threaded rod 48 and rests upon the bracket 49 and meshes with andis actuated by a corresponding spiral gear 58, mounted loosely on theshaft 59, that is mounted in the bearings '60, secured upon the top ofthe'bars 50. There are two shafts 59, which carry sprocket-wheels 61,over which a chain 62 moves, and the shafts are provided also withcranks 63, so that the movement of one crank will cause a similarmovement of the other. A clutch-jaw 64 is secured on the outer side ofeach spiral gear 58, that is adapted to be engaged by a correspondingclutch-j aw 65, secured on the rod 59. The rods 59, are longitudinallymovable in their bearings, and the clutch members 65 are so placed withrelation to each other that at least one of them will always be inengagement with the spiral gear when the .ro d- 59'is pushed to itsextreme limit in either direction; but if it be moved so that one ofsaid clutch members 65 will be partially in engagement the otherclutchmember 65 will be similarly engaged and the shaft 59 will actuate bothspiral gears 58, mounted on it, thus giving the operator control of themeans for elevating the clay cylinder. He can opcrate either theleft-hand or right-hand pair of spiral gears 58, or all four, asdesired, or three of the spiral gears 58' may be thrown out ofoperation.

To further control the mechanism after adjusting the clay cylinder sothat any side of it or any portion of it can be elevated or lowered, asthe condition of the glass may require, there is provided clutches 66 onthe outer faces of the sprocket vheels 61 to /engage correspondingclutch members on the outer ends of the shafts 59, so that said shafts59 or. either of them can be thrown out of gfiar with thesprocket-wheels 61 or either of t em.

The function of the mechanism last described is to vertically adjust theposition of the clay cylinder to suit the condition of that glass withwhich it is in contact. If there is a difference in temperature of theglass on one side or at one point of the clay cylinder, it can be raisedor lowered, so as to counteract the eflect of the difierence intemperature. If the glass at one side is hotter than at the loweredsomewhat, so that .when the glass comes under that side of the cylinderto the drawing position it will be of the same term; perature as therest of the glass at the draw mg position. The-main function ofthe claycylinder is to form within it what mlght be called a chamber for drawingthe glass and to keep the heat away from said drawingchamber. The gluesis drawn up under said clay cylinder, as will be hereafter explained.

lhe cylinder of glass is drawn by the ring 65,as seen in Fig. 3. Thisring is of greater diameter than the apex of the pyramid 32' be orsuchteniperature as to'cause the glass to adhere to 1t. The ring is thenslowly elevated, and as it is elevated it draws a cylinder of the glassup with it. The metal ring continues to draw up the cylinder of glasseven after it has been elevated to considerable distance above thesurface of the main body of glass, because of the apex of the spreaderbeing inside of the circular portion of the glass that is being drawn upfrom the body of the glass. In other words, the spreader causes thelower end of the cylinder of glass that is being drawn upward tomaintain substantially the same diameter as the drawingring instead oftapering to a point, as would be the'case ifthe spreader were not there.In order that the sheet of glass maylzemade thick enough, cooling-coilsare provided, as

shown in Fig. 3, the one, 37, within the cylinder of glass as it isformed and another,

67, surrounding the same, the latter being formed ofwater-pipes like theformer. Said coil 67 i's.supplied with water through an inlet-pipe 68,that runs out throughan out- 'let-pipe 69. As appears in F ig. 3, thelower end of the outer coil 67 chills the surface of the glass outsideof the drawing-ring 65 or of the cylinder of glass after the drawingringhas been elevated. while the lower end of the coil 37 chills the surfaceof the glass within said ring orcylinder of glass. By increasing thechill the cylinder of glass drawn will be correspondingly thicker, and

the opposite result follows from decreasing the chill. The temperatureof the inner coil is regulated by controlling the flow of water by thevalves 70 and 71,- and the water in the outer coil is regulated by thevalves 72 and 73. With these valves not only can the amount of wateradmitted lie controlled, but the direction of flow of the currentcan'be'changed, so that instead of cold -water entering the upper end ofthe innercoil it would enterv the lower end and more quickly anddirectly chill the glass, it desired.

On each side-of the supplemental tank 'there is a raflway-rail 75,andthese rails form a track for supporting the tower. Said tower iscarried by the wheels 76 "and isformed of four latticed columns 77, oneat each corner oi the rectangle, and they approach each .ether more atthe top, so as to somewhat taperin as shown. They are held together bythe teams 78 and braces 7 9 and tie-rods 80. The construction of the topof this tower appears in Fig.8, there being four side beams '81 and anintermediate beam 82, two cross-beams 83, running from one of the sidebeams 81 tosaid intermediate beam, and a beam 84, connecting the twocross-beams 83. Another cross-beam 85 extend s from the int mediate beam82 over and beyond one of the outerbeams 81. A bent beam 86 extends fromone of the crossbeams 81 to the adjacent cross-beam 81. On these variousbeams there are mounted two shafts 87 and 88 at a right angle to eachother, a bevel-gear 89 on one end of the [5 shaft 88 meshing with asimilar gear 90 on the shaft 87, and the shaft 87 is driven by the gear91, pinion 92 on the. shaft 93, gear 94, and pinion 95, mounted ontheshaft of the motor 96, that is secured to one of--the beams 81. Y

On the shafts 87 and 88 there are mounted chain-drums 97, and on one endof each of said drums there is a friction-clutch 98, that is controlledby a hand-lever 99. With this arrangement said drums are independentlycontrolled, so that one can be operated while the other is not beingoperated. The function of this mechanism is to adjust, control, andelevate the draw ing-ri 11g 65. This is done by means of the chains 100,that run from the drums over sheaves 101 that are mounted on the shafts102. At the lower end of the chains from one of said drums there arerods or long links 103, that are at their lower ends connected tovertical rods 104, which are at their lower ends connected with thedrawingring 65 in the manner shown in Figs. 10 and 11. The upper ends ofthe rod'104 are held in their relative positions by a ring 105.

In Fig. 9 the drawing-ring 65 is shown at the upper end of the longcylinder of glass which it has drawn up and which ring is ready to beremoved. I do not wish to be limited to the arrangement shown in Fig. 815 for controlling the clutches that move the drums, as that ismerely toexplain the general idea so far as that part of the mechanism isconcerned, and it may be altered to render the operation ofsaid'machinery more convenient than in the form shown. After thecylinder of glass has been drawn upward from the position shown in Fig.3 sufii-' ciently far to become hardened'it is clamped below thedrawing-ring by a clamp 110, like:

thereto, one of said arms carrying on its 5 5 that shown in Figs. 12 and14. This clamp ends successively abutting, and at their joints there arehinges -111, while at, the fourth joint the sections or ends of the ringFig. 14. On the end of one section-there is a bracket 112, through whicha rod 113 loosely extends that carries on one enda spring 114 and at theother end a bar 1115, pivoted thereto. A= handle 116 is pivoted betweenThe means for cutting offthecylinderof is formed of four equal sectionswith their are drawn together by the means shown-in its'ends to theouter end of the bar. The pin 117 on the inner end of the handle engagesa.ca'tch 118 on the other section anddraws the two sections together,when the handle 1'16 and thebai 11'5are in alinement, but when they arenot in alinement, as shown in the dotted lines in Fig. 14, the catch118," and consequently the sections of the ring, will be released, andthe ring can be readily opened and placed about a cylinderof glass asshown in Fig. 12. Itis supported by links 119, similar to the links 103,and these linksare supported by the chains 100. 'After thecylinder ofglass has been caught by the clamp the drawing-ring 65 may be removed.This is done by cutting away the cylinder of glass just below thedrawing-ring and disengaging the links 103 of the'drawing-ring from thechains. The cylinder of glass is then further elevated by one of thedrums 97 until it extends above the platform 120 on the bea'msi121, thatare reinforced by the braces 122, as appears in Fig. 5. Trucks 123operate on this platform for removing the glass. This is accomplishedbycutting oif sections of the glasssay five feet in lengthand removingsaid sections by said trucks. The cylinder of glass is-- contin'uouslyelevated after it has been started,as described, without theff'urtheruse of the 95-- drawing-ring, by means of the clamping 1 rings 110.Since there" are two drums 97 and twov sets of links 103, two of saiddamping: ringsmay be used, as shown in Fig. 5, and while one ringi'sraising the cylinder of glass; at the upper end the other can be placedaround it below, so that at all times the cylinder of glass is supportedand being elevated by at least one of said clamping-rings.

. 5 glass will now be explained. It is shown in Fig. 12 and consists ofacaplined with asbestos or other soft material 131, so that it -may restloosely upon the cylinder of glass 132, as shown in said figure. It hassecured x lo centrally in it a collar 133, through which a. tube 134extendsl vertioallyr This tube has securedon it a bevel-gear 135, thatmeshes with the bevel-gear 136 on the shaft 137, mounted in thebearing138 on. the post 139 n 5 onsaid cap.' -.The shaft 137 is operatedbythe'handl'e 238. By this means said shaft 134 is'rotated. It carrieson its lower end a collar- 140 with three arms 141, pivoted 7 20 lowerend a diamond 142, and the otherscan rying, guides 143. These-j ares'pread'by a spreading-block 144, that is elevated by a spring.14 5 andthe connecting rod 146 within the tube 134and a hand-lever 147',fulcrumed at 148 and held inplace 'by the pawl 149, that engages thecurved rack 150, secured to saidtube 134. In full lines in Fig. 12 thearms-141 are spread, so that the diamond will out the cylinder. ofglasswhen revolved. 13o

stasis The inoperative position of said parts is shown by dotted linesin said figuge. Said cutting means is shown in dotted lines in Fig. 9',and the means for elevating and lowering the same appears in thatiigure. It consists of the detachable chain 151, that extends oversheaves 152, mounted in brapkets 153 on the under side of the beam 154,secured below the beams 81. l A weight 155 is secured to the other endof said chain 151. T his enables the operator to elevate or lower thecutter into the desired position, and then he spreads the arms 141 bymeans of the lever 1 47 and'rotates the crank 238 and the diamond andcuts the glass. He then releases the lever 147, elevates his cutter, andremoves his cylinder of glass and places it upon one of the trucks.

The clay cylinder 44 is elevated entirely out of the supplemental tankwhen desired by means of the chains 100; the hooks of the chains beingcaught in the eyes 150 in the bearers 51. (Seen in Fig. 6.) The outercoil and its supporting means is similarly elevatedwhen necessary. Saidouter coil is supported and adjusted vertically by means (seen in Fig.15) which is exactly the same as shown in Figs. 6 and 7 for supportingand adjusting the clay ,cylinder, excepting that said means is slightlysmaller and it is mounted on the lower I-beams 78 of the tower slightlyabove the means shown in Fig. 6 for supporting the clay cylinder.

What 1 claim as my invention, and desire to secure by Letters Patent,is-

. 1. In a machine for making sheet or plate glass, an open drawing-ring,and means for elevating itfrom contact with the body of molten glass outof which the sheet or plate glass is to be formed. i

2. In a machine for making sheet or plate glass, a tank for the moltenglass, a spreader extending above the surface cf the glass andsurrounded bythe glass, an open drawing ring, and means for lowering.thedrawing ring to the surface of the glass surrounding sa1 3. In amachine for making sheet or plate glass, a tank for the molten glass, aspreader located in said tank and extending abovethe surface of theglass therein, an open ring fordrawing a cylinder. of glass upward fromthe molten glass about said spreader, means for chilling the surface ofthe molten glass near the point from which the cylinder is being drawn,and means for re ulating the chill imparted thereby to the g ass.

4. In a machine for making sheet or plate glass, a tank for the moltenglass, an open drawing-ring, means for lowering said drawing-ring to themolten glass and elevating the same therefrom, and stationary means forchilling the cylinder of glass that is located within the path o thering.

5. In a machine for making sheet or plate spreader and then forelevating said ring.

ring of la ger diameter than said receptacle,

,and means for lowering said ring about said receptacle and into contactwiththe molten glass and elevating the same.

6. In a machine for making sheet or plate glass, a drawing-ring, meansfor lowering it into contact with the surface of the molten glass andslowly elevating it so as to draw a cylinder of glass from the moltenglass, a coil of chilling pipes located so as to be within the cylinderof glass, and another coil of chilling pipes located to surround thecylinder of glass, said coils extending upward from a point immediatelyabove the body of molten lass.

b 7. In a machine for making sheet or plate glass, means for startingthe withdrawal of a cylinder" of glass from the surface of a bodyohm'olten glass, and a circular clamp surrounding the cylinder andclamping it below the top thereof and continuously elevating the sameafter it has been started.

' 8. In a machine for making sheet or plate glass, means for holding thecylinder of glass below the top thereof and continuously elevating thesame after it has been started, and means for cutting said cylinder ofglass into sections after it has been sufficiently hardened and while itis being elevated.

9. In a machine for making sheet. or plate glass, a tank for moltenglass having an opening through its top, a spreader within said tankextending from the bottom to a point above the surface of the glass, acylinder extending downward through an opening in said tank to apointbelow the surface of the glass and surrounding the upper end of saidspreader, and means for operating on the glass within said cylinder nearthe upper end of saidsprader.

' 1.0. Ina machinefor making sheet or plate glass, a tank for the moltenglass, a spreader extending upin said tank to a point above the surfaceof the glass, an inner chilling-coil mounted'at the top ofsaid spreader,means for. drawing the glass from a hne surrounding the top of saidspreader, and an outer chillingcoil around the cylinder of glass beingdrawn,

the lower end of said outer coil surrounding the upper end of saidspreader.

11 In a machinei'or making sheetor plate the glass, a coil of pipemounted on the upper end of said spreader with outlet and inlet pipes tosaid coil through said spreader, valves in said pipes for controllingthe flow of Water through said coil, another coil of pipes, means forsupporting it about said central coil, valve-controlledpipes leading tosaid outer coil, and means for drawing a cylinder of glass from thesurface of the molten glass between said coils.

13. In a machine for making sheet or plate glass, a tank for the moltenglass, a tower above the same, means for starting the formation of acylinder of glass, means for clamp ing the cylinder of glass after it isstarted, a plurality of means on. the top of the tower for elevatingsaid starting and said clamping means, and means for operating saidelevating means together or indepemlently of each other. 7

14. in a machine for making sheet or plate glass, a tank for the moltenglass, a tower above the same, two drums mounted on said tower, shaftson which said drums are me unted, means for driving the same, clutcheson each shaft for transmitting power from the shaft to the drum thereon,means for operating each of said clutches independently,'

chains on each drum, a pair of pulleys mounted on the tower over which.said chains pass so as to bring the chains of each pair opposite eachother, and means for operating on the glass in and above. the tank thatmay be connected or d iswmnected at will with said chains.

15. in a machine for making sheet or plate glass, a tank for the moltenglass, a drawingring for starting a cylimler of glass upward from thesurface of the molten glass, a plurality of rods extending upward fromsaid ring, a ring at the upper end of said rods for holding their freeends in place, and means for elevating or lowering the frame thus formedin connection with said drawing-ring.

16. In a machine for making sheet or plate glass, a tank for the moltenglass, means for starting a cylinderof glass upward from the surface ofthe molten glass, a clamping-ring for engaging and holding said cylinderof glass after it has been started, said clampingring consisting of aplurality of sections hinged together at all their adjacent ends saveone so as to form a separable ring, and means for drawing and holdingthe ends of said ring together.

17. In a machine for making sheet or plateglass, a tank for the moltenglass, means for starting a cylinder of glass upward from the. surfaceof the molten glass, a clamping-ring for engaging and holding saidcylinder of glass after it has been started, said clampingringconsisting of a plurality of sections hinged together at all theiradjacent ends save one so as to form a separable ring, a bracket securedto one end of said ring, a spring-catch secured to the other end, a

spring-controlled 'rod extending loosely tween its ends to the outer endof said bar with a pin on the inner end of said handle to engage. saidcatch, substantially as shown and described.

18. In a machine for making sheet or plate glass, a tank for the moltenglass with an opening in the top thereof, a cylinder running'throughsaid opening with its lower end below the surface of the glass, fourrods extending upward from said cylinder and equidistant from eachother, and supporting said rods and means for independently elevating orlowering each of said rods so as to adjust the vertical position of saidcylinder or any portion thereof.

19. In a machine for making sheet. or plate glass, a tank for the moltenglass having an opening in the top, a cylinder extending downward intosaid opening with its lower end below the surface of the glass,screw-rods extending upward from said cylinder, a frame above said tank,brackets mounted on said frame. through which said screw-rods extend, aspiral gear internally threaded and mounted on each of said rods abovesaid bracket, horizontally-disposed shafts, gears on said shafts foractuating the spiral gears on said threaded rods, clutches on saidshafts for engaging or disengaging said gears, and means for actuatingsaid shafts separately or together, as desired.

20. in a machine for making sheet or plate glass, a tank for the moltenglass, means for drawing a c \;'linder of glass upward fronrthc surfacethereof, a cutter operative within the cylinder of glass, and means forlowering said cutter into the upper end of the cylinder of glass wherebythe. upper portion thereof may be cut oil.

21. in a machine for making sheet or plate glass, a tank for the moltenglass, means for continuously drawing a cylinder of glass upward fromthe surface of the i'nolten glass, :1 cap adapted to iit upon the upperend of the cylinder of glass, a cutter mounted in connection with saidcap and adapted to enter the cylinder of glass, means on said cap foroperating the cutter, and means for elevating and lowering said cap.

22. in a machine for making sheet or plat 0 glass, a tank for the moltenglass, means for drawing a cylinder of glass upward from the surfacethereof, a cap plate adapted to be placed upon and surround the upperend of the. cylinder of glass, a tube extending centrally through saidcap, arms pivoted to the lower end. of said tube, guide-rollers on thelower end of two of said arms, a diamond on the. lower end of one arm, ablock for spreadin said arms, means operative through said tn )0 formoving said block to spread arms, a bevel-gear on said tube above saidsaid cap, and means noiinted on the cap for actuform, an d trucks onsaid platform for moving atlng said bevel-gear'to revolve the tube andthe sections of glass as they arecut. diamond. e In witness whereof Ihave hereunto af- 23. In a machine for making sheet or plate fixed mysignature in the presence of the wit- 5 glass, a tank containingmolten'giass, means for drawings cylinder of glass upward from nessesherein named.

the surface thereof, a platform mounted ,WILLIAM- KEYES above said tankthrough which said-cylinder Witnesses; of glass is elevated, means forcutting ofi sec r V. H. LOCKWOOD,

mo tions 'of said cylipder of glass above said plat- N ELLIE ALLEMONG.

